Brief review to be added of Roy Craig's book “UFOs – An Insider’s View” (1995) (available on Amazon USA and on Amazon UK)
Brief review to be added of Leonard G Cramp's book “Piece for a Jig-Saw” (1966) (available on Amazon USA and on Amazon UK)
Brief review to be added of Crowe, Michael J's book “The Extraterrestrial Life Debate, 1750-1900” (1986) (available on Amazon USA and on Amazon UK)
Brief review to be added of Leonard G Cramp's book “Space, Gravity and the Flying Saucer” (1954) (available on Amazon USA and on Amazon UK)
Brief review to be added of Ellen Crystall's book “Silent Invasion” (1991) (available on Amazon USA and on Amazon UK)